866220863101 has 8 divisors (see below), whose sum is σ = 946216530144. Its totient is φ = 786433248720.

The previous prime is 866220863099. The next prime is 866220863107. The reversal of 866220863101 is 101368022668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866220863101 - 2¹ = 866220863099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866220863107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52004455 + ... + 52021108.

It is an arithmetic number, because the mean of its divisors is an integer number (118277066268).

Almost surely, 2^866220863101 is an apocalyptic number.

It is an amenable number.

866220863101 is a deficient number, since it is larger than the sum of its proper divisors (79995667043).

866220863101 is a wasteful number, since it uses less digits than its factorization.

866220863101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104026331.

The product of its (nonzero) digits is 165888, while the sum is 43.

Adding to 866220863101 its reverse (101368022668), we get a palindrome (967588885769).

The spelling of 866220863101 in words is "eight hundred sixty-six billion, two hundred twenty million, eight hundred sixty-three thousand, one hundred one".